We've seen the claims before, 10x, 5x, 3x the energy density for some new wondrous cells.
Panasonic 18650GA cells have a gravimetric density of 224 Wh/kg allowing some fixed wing drones to achieve 2+ hours of flight, these new SES cells claim 400-500 Wh/kg and are apparently available for sale now.
Could we see a 1 hour multirotor flight as normal soon?
http://www.solidenergysystems.com/technology/
https://www.greentechmedia.com/articles/read/a-new-lithium-metal-battery-takes-flight-in-drones
Comments
Another supplier that cannot deliver ? Just like these guys: https://oxisenergy.com/